I'm running Windows 7 and recently installed VirtualBox and Ubuntu 12.04 in it. I run it every now and then especially when I'm at school. When I'm at home or another location, I allow VB to share my host computer's connection by going into Settings and telling it to be a "Bridged" connection and pointed that connection to my wireless modem when on WiFi and point it to my Ethernet modem when connecting via Ethernet. At school...it's a different story. My college's WiFi is available strictly to students and this service only allows, pretty much, basic internet browsers network privileges (to stop the use of other third party applications such as Bitorrent). This also extends to VB and won't allow access to Ubuntu to use the web via any setting I set it to! Is there anything that I can do to allow share of network connection with VB?